package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.extensions.XSSFCellBorder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author zhouwei
 * @date 2020-01-10 9:40
 */
@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private ReportService reportService;

    /**
     * 会员数量折线图
     * @return
     */
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        Map<String,Object> map=new HashMap<String,Object>();
        List<String> months = new ArrayList<>();
        //获取日历对象
        Calendar calendar=Calendar.getInstance();
        //将日期往后推12个月
        calendar.add(Calendar.MONTH,-12);
        //遍历往前推12个月
        for (int i = 0; i <=12 ; i++) {
            calendar.add(Calendar.MONTH,1);
            months.add(new SimpleDateFormat("yyyy-MM").format(calendar.getTime()));
        }
        map.put("months",months);
        //后台查询member
        List<Integer> members=memberService.findMemberByDate(months);
        map.put("memberCount",members);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }

    /**
     * 预约套餐饼状图
     * @return
     */
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        try {
            Map<String,Object> map =new HashMap<>();
            List<Map<String,Object>> list=setmealService.findSetmealCount();
            List<String> setmealName=new ArrayList<>();
            for(Map<String,Object> setmap:list){
                String setmealname=(String)setmap.get("name");
                setmealName.add(setmealname);
            }
            map.put("setmealNames",setmealName);
            map.put("setmealCount",list);
            return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }


    /**
     * 获取运营统计数据
     * @return
     */
    @RequestMapping("/getBusinessReportData")
    public Result  getBusinessReportData(){
        Map<String,Object> map= null;
        try {
            map = reportService.getBusinessReportData();
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
        return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
    }

    /**
     * 运营统计数据导出
     * @param request
     * @return
     */
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request,HttpServletResponse response){
        Map<String,Object> map= null;
        try {
            map = reportService.getBusinessReportData();
            String reportDate = (String) map.get("reportDate");
            Integer todayNewMember = (Integer) map.get("todayNewMember");
            Integer totalMember = (Integer) map.get("totalMember");
            Integer thisWeekNewMember = (Integer) map.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) map.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) map.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) map.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) map.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) map.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) map.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) map.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) map.get("hotSetmeal");

            //获取模板文件路径
            String filePath=request.getSession().getServletContext().getRealPath("template")+File.separator+"report_template.xlsx";
            //基于提供的excel文件模板创建文件对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for(Map map1 : hotSetmeal){//热门套餐
                String name = (String) map1.get("name");
                Long setmeal_count = (Long) map1.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map1.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
            excel.write(out);

            out.flush();
            out.close();
            excel.close();

        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
        return null;
    }

}
